Yeah, the title is misleading. Gio's call up is only going to be discussed according to CBSSportline:

News: After trading SP Joe Blanton to the Phillies on Thursday, Athletics assistant GM David Forst said he had yet to discuss with manager Bob Geren who would fill Blanton's spot in the rotation. Gio Gonzalez, a candidate to be promoted, has been pitching well for Triple-A Sacramento, compiling a 0.95 ERA over his last four starts.

Analysis: Gonzalez is one of the best pitching prospects in baseball and easily the most logical candidate to enter the rotation. Pick him up in AL-only formats and some deeper mixed leagues because his strikeout potential should make him useful right away.